Photodegradation Studies Of Mn Doped Cdse Qds On Brilliant Green Dye Under Sunlight Irradiation

The CdSe QDs doped with Mn (5%) ions was synthesized by chemical precipitation method using the aqueous route. The prepared QDs were characterized by XRD and UV-Vis absorption spectroscopy. XRD results show that the prepared samples were in zinc blende cubic phase. In UVVis studies, the absorption spectra of the prepared samples were strongly blue shifted with respect to their bulk counterpart due to quantum confinement effect. The photocatalytic activities of the undoped and Mn (5%) doped CdSe QDs were evaluated by the degradation of Brilliant Green (BG) dye under sunlight irradiation. The photocatalytic experiment confirms that the Mn (5%) doped CdSe QDs exhibit improved photocatalytic efficiency compared to pure CdSe QDs.